Ion generator, refrigerator and control method

Abstract

The invention discloses an ion generator, a refrigerator and a control method. The ion generator comprises a direct current power supply, the output end of which is connected with a first terminal of the primary side of a transformer; a second terminal of the primary side of the transformer is connected with the reference ground, a first terminal of the secondary side is connected with the first end of the filter capacitor, a second terminal is connected with the first end of the filter capacitor, the first terminal of the secondary side of the transformer is connected with the discharge electrode, and the discharge electrode is arranged opposite to the neutral electrode; the first detection module is used for detecting the input voltage of the discharge electrode; the input end of the variable frequency controller is connected with the first detection module, the output end of the variable frequency controller is connected with the switching tube, and the variable frequency controller is used for adjusting the switching period and / or duty ratio of the switching tube between the second terminal of the primary side of the transformer and the reference ground after the discharge electrode continuously operates for a period of time under the same input voltage, so that the input voltage of the discharge electrode is changed. According to the invention, the ion generation amount and the ion diffusion efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic circuits, and in particular to an ion generator, a refrigerator and a control method. Background Art

[0002] At present, ion generators have been widely used to improve the air environment in public places, as well as in household appliances with functions such as fresh air, sterilization, disinfection, preservation, and deodorization, such as refrigerators, air conditioners, air purifiers and other appliances.

[0003] Existing ion generators include negative ion generators and plasma generators. The working principle of the ion generator is as follows: the voltage input by the power supply is boosted by the boost circuit to obtain high voltage, which is output to the discharge electrode, and the discharge electrode discharges and releases ions. The ion generator generates a large number of negative ions when working. When the negative ions gather to a certain amount, it is easy to cause the discharge electrode and the gathered negative ions to reach the same potential, affecting the normal operation of the ion generator, resulting in the discharge electrode only generating a small amount of negative ions or even no negative ions.

[0004] There is currently no effective solution to the problem that when negative ions near the discharge electrode of the ion generator in the prior art accumulate to a certain amount, the discharge electrode and the accumulated negative ions will reach the same potential, thereby causing the discharge electrode to be unable to continue to generate negative ions. Summary of the invention

[0005] An ion generator, a refrigerator and a control method are provided in the embodiments of the present invention to solve the problem in the prior art that when negative ions near the discharge electrode of the ion generator gather to a certain amount, the discharge electrode and the gathered negative ions reach the same potential, thereby causing the discharge electrode to be unable to continue to generate negative ions.

[0006] In order to solve the above technical problems, the present invention provides an ion generator, which comprises:

[0007] A DC power supply, an output end of which is connected to a first terminal of a primary side of the transformer;

[0008] The transformer, the second terminal of the primary side thereof is connected to the reference ground, the first terminal of the secondary side thereof is connected to the first end of the filter capacitor, the second terminal of the secondary side thereof is connected to the first end of the filter capacitor, the first terminal of the secondary side of the transformer is also connected to the discharge electrode, and the discharge electrode is arranged opposite to the neutral electrode;

[0009] A first detection module, used for detecting the input voltage of the discharge electrode;

[0010] A frequency conversion controller, whose input end is connected to the first detection module and whose output end is connected to a switch tube, is used to adjust the switching period and / or duty cycle of the switch tube according to the input voltage of the discharge electrode after the discharge electrode continuously operates at the same input voltage for a period of time, so that the input voltage of the discharge electrode changes;

[0011] The switch tube is arranged between the second terminal of the primary side of the transformer and the reference ground.

[0012] Furthermore, the ion generator further comprises:

[0013] The voltage doubling module is arranged between the secondary side of the transformer and the filter capacitor, wherein the first terminal on the input side is connected to the first terminal on the secondary side of the transformer, the second terminal on the input side is connected to the second terminal on the secondary side of the transformer, the first terminal on the output side is connected to the first end of the filter capacitor, and the second terminal on the output side is connected to the second end of the filter capacitor.

[0014] Furthermore, the ion generator further comprises:

[0015] A resistor is provided between the first terminal of the secondary side of the transformer and the discharge electrode.

[0016] Furthermore, the ion generator further comprises:

[0017] A detection coil is arranged on the secondary side of the transformer;

[0018] A second detection module, a first terminal of its input end is connected to the first end of the detection coil, a second terminal of its input end is connected to the second end of the detection coil, and an output side is connected to the frequency conversion controller, and the second detection module is used to detect the voltage on the primary side of the transformer;

[0019] The frequency conversion controller is also used to determine and calculate the duty cycle of the switch tube according to the voltage on the primary side of the transformer, and to determine whether the duty cycle of the switch tube reaches the maximum duty cycle. If so, the duty cycle of the switch tube is controlled to stop increasing.

[0020] The present invention also provides a refrigerator, comprising the above-mentioned ion generator.

[0021] The present invention also provides a control method, which is applied to the above-mentioned ion generator, and the control method comprises:

[0022] After the discharge electrode of the ion generator continuously operates at the same input voltage for a preset period of time, obtaining the input voltage of the discharge electrode;

[0023] The switching period and / or duty cycle of the switch tube is adjusted according to the input voltage of the discharge electrode, so that the input voltage of the discharge electrode changes.

[0024] Further, adjusting the switching period and / or duty cycle of the switch tube according to the input voltage of the discharge electrode so as to change the input voltage of the discharge electrode includes:

[0025] Controlling the input voltage of the discharge electrode to adjust the switching period of the switch tube to shorten, and / or controlling the duty cycle of the switch tube to increase, so that the input voltage of the discharge electrode increases;

[0026] Alternatively, the input voltage of the discharge electrode is controlled to adjust the switching period of the switch tube to extend, and / or the duty cycle of the switch tube is controlled to decrease, so that the input voltage of the discharge electrode is reduced.

[0027] Furthermore, the method further comprises:

[0028] Determining whether the duty cycle of the switch tube reaches a maximum duty cycle;

[0029] If yes, the duty cycle of the switch tube is controlled to stop increasing.

[0030] The present invention also provides a control method, which is applied to the above refrigerator, and the control method comprises:

[0031] Get the frequency of opening or closing the refrigerator door;

[0032] According to the door opening frequency of the refrigerator, the switching cycle and / or the duty cycle of the switch tube of the ion generator is adjusted to adjust the input voltage of the discharge electrode of the ion generator.

[0033] Alternatively, the switching period and / or duty cycle of the switch tube of the ion generator is adjusted according to the closing time of the refrigerator door, so as to adjust the input voltage of the discharge electrode of the ion generator.

[0034] Further, adjusting the switching cycle and / or duty cycle of the switch tube of the ion generator according to the door opening frequency of the refrigerator to adjust the input voltage of the discharge electrode of the ion generator includes:

[0035] If the door opening frequency of the refrigerator increases, the switching cycle of the switch tube of the ion generator is controlled to be shortened and / or the duty cycle of the switch tube is controlled to be increased, so as to control the input voltage of the discharge electrode of the ion generator to increase;

[0036] If the door opening frequency of the refrigerator decreases, the switching cycle of the switch tube of the ion generator is controlled to be extended and / or the duty cycle of the switch tube is controlled to be reduced, so as to control the input voltage of the discharge electrode of the ion generator to decrease.

[0037] Further, adjusting the switching cycle and / or duty cycle of the switch tube of the ion generator according to the closing time of the refrigerator door to adjust the input voltage of the discharge electrode of the ion generator includes:

[0038] If the door opening time of the refrigerator is shortened relative to the set time, the switching cycle of the switch tube of the ion generator is controlled to be shortened and / or the duty cycle of the switch tube is controlled to be increased, so as to control the input voltage of the discharge electrode of the ion generator to increase;

[0039] If the door opening time of the refrigerator is extended relative to the set time, the switching cycle of the switch tube of the ion generator is extended and / or the duty cycle of the switch tube is reduced to control the input voltage of the discharge electrode of the ion generator to decrease.

[0040] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the control method of the ion generator is implemented.

[0041] The present invention also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the control method of the refrigerator is implemented.

[0042] The present invention also provides an electronic device, comprising:

[0043] one or more processors;

[0044] A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the control method of the ion generator or the control method of the refrigerator.

[0045] By applying the technical solution of the present invention, after the discharge electrode of the ion generator runs continuously for a period of time at the same input voltage, the switching period and / or duty cycle of the switch tube between the second terminal of the primary side of the transformer and the reference ground is controlled according to the input voltage of the discharge electrode, so that the input voltage of the discharge electrode changes, which can break the same potential of the discharge electrode and the accumulated negative ions, so that the discharge electrode can continue to generate ions. At the same time, because the electric field of the discharge electrode changes, kinetic energy is provided to the ions moving in the electric field, accelerating the movement and increasing the diffusion distance. In summary, the ion generator of this embodiment can improve the ion generation amount and ion diffusion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a circuit structure diagram of an ion generator according to an embodiment of the present invention;

[0047] Figure 2is a schematic diagram of an electrode structure according to an embodiment of the present invention;

[0048] Figure 3 is a schematic diagram of another electrode structure according to an embodiment of the present invention;

[0049] Figure 4 is a flow chart of a control method of an ion generator according to an embodiment of the present invention;

[0050] Figure 5 A schematic diagram of adjusting the amplitude of the voltage on the primary side of the transformer according to an embodiment of the present invention;

[0051] Figure 6 A schematic diagram of periodic regulation of the voltage on the primary side of a transformer according to an embodiment of the present invention;

[0052] Figure 7 is a flow chart of a method for controlling an ion generator according to another embodiment of the present invention;

[0053] Figure 8 is a flow chart of a method for controlling a refrigerator according to an embodiment of the present invention;

[0054] Fig. 9 FIG. 4 is a schematic diagram of the hardware structure of the electronic device according to the embodiment. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0057] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0058] It should be understood that although the terms first, second, etc. may be used to describe the detection modules in the embodiments of the present invention, the detection modules should not be limited to these terms. These terms are only used to distinguish different detection modules. For example, without departing from the scope of the embodiments of the present invention, the first detection module may also be referred to as the second detection module, and similarly, the second detection module may also be referred to as the first detection module.

[0059] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0060] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0061] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0062] Example 1

[0063] Since the ion generator generates a large amount of negative ions when working, when the negative ions gather to a certain amount, it is easy to cause the discharge electrode and the gathered negative ions to reach the same potential, affecting the normal operation of the ion generator, causing the discharge electrode to generate only a small amount of negative ions or even no negative ions.

[0064] In view of the problem that when negative ions near the discharge electrode of the ion generator in the prior art gather to a certain amount, the discharge electrode and the gathered negative ions will reach the same potential, thereby causing the discharge electrode to be unable to continue to generate negative ions, this embodiment provides an ion generator. Figure 1 : is a circuit structure diagram of an ion generator according to an embodiment of the present invention, Figure 1 As shown, the ion generator comprises:

[0065] A DC power supply 1, whose output end is connected to the first terminal of the primary side of a transformer 2; a transformer 2, whose second terminal on the primary side is connected to a reference ground, whose first terminal on the secondary side is connected to the first end of a filter capacitor C, whose second terminal on the secondary side is connected to the first end of the filter capacitor C, and whose first terminal on the secondary side of the transformer 2 is also connected to a discharge electrode 3, which is arranged opposite to a neutral electrode 4, that is, the ion generator of this embodiment is an open single-electrode structure, and a neutral electrode is arranged opposite to the discharge electrode, serving as a positive electrode of the discharge electrode, and forming a loop with the discharge electrode, and the distance between the discharge electrode and the neutral electrode is set according to actual needs.

[0066] Figure 2 is a schematic diagram of an electrode structure according to an embodiment of the present invention, such as Figure 2 As shown, the discharge electrode and the neutral electrode are arranged laterally opposite to each other.

[0067] Figure 3 is a schematic diagram of another electrode structure according to an embodiment of the present invention, such as Figure 3 As shown, the discharge electrode and the neutral electrode are arranged opposite to each other longitudinally.

[0068] The above-mentioned ion generator also includes: a first detection module 5, which is used to detect the input voltage of the discharge electrode 3; the above-mentioned ion generator also includes a frequency conversion controller 6, whose input end is connected to the first detection module 5, and whose output end is connected to the switch tube Q, which is used to adjust the switching period and / or duty cycle of the switch tube Q according to the input voltage of the discharge electrode 3 after the discharge electrode 3 has been continuously operated for a period of time at the same input voltage, so that the input voltage of the discharge electrode changes. By adjusting the switching period and / or duty cycle of the switch tube Q, the voltage on the primary side of the transformer 2 can be controlled, and then the voltage on the secondary side of the transformer 2 can be controlled, and finally the input voltage of the discharge electrode 3 is changed, and the shorter the switching period of the switch tube Q, the higher the input voltage of the discharge electrode 3; the higher the duty cycle of the switch tube Q, the higher the input voltage of the discharge electrode 3; as shown in the figure, the switch tube Q is arranged between the second terminal of the primary side of the transformer 2 and the reference ground.

[0069] The ion generator of this embodiment, after the discharge electrode of the ion generator continuously operates for a period of time at the same input voltage, controls the switching period and / or duty cycle of the switch tube Q between the second terminal of the primary side of the transformer 2 and the reference ground according to the input voltage of the discharge electrode 3, so that the input voltage of the discharge electrode 3 changes, which can break the same potential of the discharge electrode and the accumulated negative ions, so that the discharge electrode can continue to generate ions. At the same time, because the electric field of the discharge electrode changes, it will provide kinetic energy for the movement of ions in the electric field, accelerate the movement, and increase the diffusion distance. In summary, through the ion generator of this embodiment, the ion generation amount and ion diffusion efficiency can be improved.

[0070] Since the discharge electrode 3 requires a higher voltage and the amplification factor of the transformer 2 is limited, the voltage of the DC power supply needs to be amplified secondary. To achieve the above function, the ion generator also includes: a voltage doubling module 7, which is arranged between the secondary side of the transformer 2 and the filter capacitor C, and the first terminal on its input side is connected to the first terminal on the secondary side of the transformer 2, the second terminal on its input side is connected to the second terminal on the secondary side of the transformer 2, the first terminal on its output side is connected to the first end of the negative filter capacitor C, and the second terminal on its output side is connected to the second end of the filter capacitor C.

[0071] In order to limit the current in the circuit, the ion generator further includes: a resistor R, which is arranged between the first terminal of the secondary side of the transformer 2 and the discharge electrode 3 .

[0072] Since the switch tube has a duty cycle limit, if its duty cycle exceeds a certain threshold, it will lead to increased losses and a serious shortening of its life. Therefore, in order to limit the duty cycle of the switch tube Q, the above-mentioned ion generator also includes: a detection coil 8, which is arranged on the secondary side of the transformer; a second detection module 9, a first terminal of its input end is connected to the first end of the detection coil 8, a second terminal of its input end is connected to the second end of the detection coil 8, and its output side is connected to the frequency conversion controller 6, and the second detection module 9 is used to detect the voltage on the primary side of the transformer 2; the frequency conversion controller 6 determines and calculates the duty cycle of the switch tube Q according to the voltage on the primary side of the transformer 2, and determines whether the duty cycle of the switch tube Q reaches the maximum duty cycle. If so, the duty cycle of the switch tube Q is controlled to stop increasing.

[0073] In specific implementation, experiments can be conducted to test how long the discharge electrode of the ion generator needs to run continuously at the same input voltage before the discharge electrode and the accumulated negative ions reach the same potential, and then the time period can be set to a preset time period. After the discharge electrode of the ion generator runs continuously at the same input voltage for a preset time period, the input voltage of the discharge electrode 3 is obtained, and then the switching period and / or duty cycle of the switch tube Q is adjusted to increase or decrease the input voltage of the high-voltage electrode 3, thereby changing the voltage between the electrodes to cause a change in the electric field strength, causing the electric field force on the ions to change, and then changing the movement direction and speed of the ions, thereby increasing the movement distance.

[0074] Example 2

[0075] This embodiment provides a control method for an ion generator, which is applied to the ion generator of the above embodiment. Figure 4 FIG. 1 is a flow chart of a control method of an ion generator according to an embodiment of the present invention. Figure 4 As shown, the control method includes:

[0076] S101, after the discharge electrode of the ion generator continuously operates at the same input voltage for a preset period of time, obtaining the input voltage of the discharge electrode.

[0077] When the negative ions near the discharge electrode of the ion generator gather to a certain amount, the discharge electrode and the gathered negative ions will reach the same potential, which will cause the discharge electrode to no longer generate negative ions. Therefore, after the discharge electrode of the ion generator runs continuously for a preset period of time at the same input voltage, the input voltage of the discharge electrode needs to be changed.

[0078] S102, adjusting the switching period and / or duty cycle of the switch tube according to the input voltage of the discharge electrode, so that the input voltage of the discharge electrode changes.

[0079] By adjusting the switching period and / or duty cycle of the switching tube, the voltage on the primary side of the transformer can be controlled, and then the voltage on the secondary side of the transformer can be controlled, and finally the input voltage of the discharge electrode can be changed. The shorter the switching period of the switching tube, the higher the input voltage of the discharge electrode; the higher the duty cycle of the switching tube, the higher the input voltage of the discharge electrode.

[0080] The control method of this embodiment controls the switching period and / or duty cycle of the switch tube between the second terminal of the primary side of the transformer and the reference ground according to the input voltage of the discharge electrode after the discharge electrode of the ion generator has been running continuously for a period of time at the same input voltage, so that the input voltage of the discharge electrode changes, which can break the same potential of the discharge electrode and the accumulated negative ions, and enable the discharge electrode to continuously generate ions. At the same time, because the electric field of the discharge electrode changes, kinetic energy is provided to the ions moving in the electric field, accelerating the movement and increasing the diffusion distance. In summary, the control method of this embodiment can improve the ion generation amount and ion diffusion efficiency.

[0081] Specifically, in order to change the input voltage of the discharge electrode, the switching period and / or duty cycle of the switch tube is adjusted according to the input voltage of the discharge electrode to change the input voltage of the discharge electrode, including: controlling the input voltage of the discharge electrode to adjust the switching period of the switch tube to shorten, and / or controlling the duty cycle of the switch tube to increase, thereby increasing the amplitude of the voltage on the primary side of the transformer and increasing the input voltage of the discharge electrode; or controlling the input voltage of the discharge electrode to adjust the switching period of the switch tube to extend, and / or controlling the duty cycle of the switch tube to decrease, thereby reducing the amplitude of the voltage on the primary side of the transformer and reducing the input voltage of the discharge electrode.

[0082] Figure 5 Schematic diagram of adjusting the amplitude of the voltage on the primary side of the transformer according to an embodiment of the present invention, as shown in FIG. Figure 5 As shown, during the operation of the ion generator, the amplitude of the voltage on the primary side of the transformer changes continuously.

[0083] Figure 6FIG. 1 is a schematic diagram of periodic regulation of the voltage on the primary side of a transformer according to an embodiment of the present invention. Figure 6 As shown, during the operation of the ion generator, the length of the cycle of the voltage on the primary side of the transformer keeps changing, and T1, T2, and T3 are different cycles respectively.

[0084] Since the switching tube has a duty cycle limit, if its duty cycle exceeds a certain threshold, it will lead to increased losses and a severely shortened lifespan. Therefore, in order to limit the duty cycle of the above-mentioned switching tube, the above-mentioned control method also includes: determining whether the duty cycle of the switching tube reaches the maximum duty cycle; if so, controlling the duty cycle of the switching tube to stop increasing.

[0085] Specifically, a detection coil can be set on the secondary side of the transformer, and a second detection module can be set at the same time, the first terminal of the input end of the second detection module is connected to the first end of the detection coil, the second terminal of the input end of the second detection module is connected to the second end of the detection coil, the output end of the second detection module is connected to the frequency conversion controller, the voltage on the primary side of the transformer is detected by the second detection module, the duty cycle of the switch tube is calculated according to the voltage on the primary side of the transformer by the frequency conversion controller, and it is determined whether the duty cycle of the switch tube reaches the maximum duty cycle.

[0086] Example 3

[0087] This embodiment provides another control method for an ion generator. Figure 7 FIG. 1 is a flow chart of a control method of an ion generator according to another embodiment of the present invention. Figure 7 As shown, the control method includes:

[0088] S1, after the discharge electrode of the ion generator continuously operates at the same input voltage for a preset period of time, the input voltage of the discharge electrode is obtained through the frequency conversion controller.

[0089] S2, controlling the switching period and / or duty cycle of the switch tube according to the input voltage of the discharge electrode, thereby changing the input voltage of the discharge electrode.

[0090] S3, the electric field strength of the discharge electrode and its surroundings changes.

[0091] S4, the electron diffusion direction and speed change.

[0092] The control method of this embodiment utilizes the switching period and duty cycle of the switch tube on the primary side of the control transformer to change the input voltage of the discharge electrode and the electric field strength around the discharge electrode, and the potential difference between the discharge electrode and the negative ions gathered around it changes, so that ions continue to be generated efficiently. In addition, due to the change in electric field strength, the direction of the ion force is changed, and then the ion acceleration is changed, so that the diffusion speed and distance are increased, and finally the generation of ions and efficient diffusion are effectively improved.

[0093] The input voltage of the above-mentioned discharge electrode is achieved by adjusting the switching period and duty cycle of the primary side of the transformer. The voltage signal input by the DC source is coupled with the transformer to boost the voltage to obtain a special-shaped AC power, and then passes through the voltage doubling module to obtain a high-voltage signal with different voltage amplitudes, different frequencies and different duty cycles. The above-mentioned high-voltage signal is output to the discharge electrode to cause the discharge electrode to discharge and generate ions.

[0094] The diffusion of ions is essentially the drift of negative ions to the equivalent positive electrode under the action of the electric field force. The ion generator of this embodiment is an open single-electrode structure. A neutral electrode is arranged opposite to the discharge electrode, which serves as the positive electrode of the discharge electrode and forms a loop with the discharge electrode. By changing the voltage between the electrodes, the electric field strength changes. The change in the electric field force causes the change in the direction and speed of ion movement, which can increase the movement distance and increase the diffusion effect. As long as the voltage of the positive and negative electrodes changes, the electric field strength weakens or increases, and the drift of the ion positive electrode will change. The kinetic energy of the free electrons generated by field emission changes, and it is difficult to form ozone, thereby increasing the concentration of negative ions and the diffusion effect.

[0095] Example 4

[0096] This embodiment provides a refrigerator, which uses the ion generator of the above embodiment to improve the ion generation amount and ion diffusion efficiency.

[0097] Example 5

[0098] This embodiment provides a refrigerator control method, which is applied to the refrigerator in the above embodiment. Figure 8 is a flow chart of a method for controlling a refrigerator according to an embodiment of the present invention. Figure 8 As shown, the control method includes:

[0099] S201, obtaining the frequency of opening or closing the door of the refrigerator.

[0100] S202, adjusting the switching period and / or duty cycle of the switch tube of the ion generator according to the frequency of opening the door of the refrigerator to adjust the input voltage of the discharge electrode of the ion generator, or adjusting the switching period and / or duty cycle of the switch tube of the ion generator according to the closing time of the refrigerator door to adjust the input voltage of the discharge electrode of the ion generator.

[0101] If the refrigerator is opened frequently, or in other words, the opening time of the refrigerator is prolonged and the closing time is shortened, new bacteria will be introduced. In order to improve the sterilization effect, more ions need to be generated. If you want to generate more ions, you need to increase the input voltage of the discharge electrode of the above-mentioned ion generator. Therefore, when the refrigerator is running, you need to obtain the opening frequency or closing time of the refrigerator, and then adjust the switching cycle and / or duty cycle of the switch tube of the ion generator according to the opening frequency of the refrigerator.

[0102] In order to improve the sterilization effect after the number of bacteria in the refrigerator environment increases, the switching period and / or duty cycle of the switch tube of the ion generator is adjusted according to the door opening frequency of the refrigerator to adjust the input voltage of the discharge electrode of the ion generator, including: if the door opening frequency of the refrigerator increases, the switching period of the switch tube of the ion generator is shortened and / or the duty cycle of the switch tube is increased to control the input voltage of the discharge electrode of the ion generator to increase; if the door opening frequency of the refrigerator decreases, the switching period of the switch tube of the ion generator is extended and / or the duty cycle of the switch tube is reduced to control the input voltage of the discharge electrode of the ion generator to decrease.

[0103] The switching period and / or duty cycle of the switch tube of the ion generator is adjusted according to the closing time of the refrigerator door to adjust the input voltage of the discharge electrode of the ion generator, including: if the opening time of the refrigerator door is shortened relative to the set time, the switching period of the switch tube of the ion generator is shortened and / or the duty cycle of the switch tube is increased to control the input voltage of the discharge electrode of the ion generator to increase; if the opening time of the refrigerator door is prolonged relative to the set time, the switching period of the switch tube of the ion generator is prolonged and / or the duty cycle of the switch tube is reduced to control the input voltage of the discharge electrode of the ion generator to decrease.

[0104] Example 6

[0105] This embodiment provides a computer-readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the control method of the ion generator described above is implemented.

[0106] Example 7

[0107] This embodiment provides a computer-readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the control method of the refrigerator is implemented.

[0108] Example 8

[0109] This embodiment provides an electronic device, including:

[0110] one or more processors;

[0111] A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the control method of the ion generator or the control method of the refrigerator.

[0112] Fig. 9 FIG. 1 is a schematic diagram of the hardware structure of the electronic device according to this embodiment. Fig. 9 As shown, the device includes:

[0113] One or more processors 910 and memory 920, Fig. 9 A processor 910 is taken as an example.

[0114] The electronic device may further include: an input device 930 and an output device 940 .

[0115] The processor 910, the memory 920, the input device 930 and the output device 940 may be connected via a bus or other means. Fig. 9 The example of connecting through bus is taken in the following.

[0116] The memory 920 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the control method in the embodiment of the present invention. The processor 910 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 920, that is, implementing the above method embodiment.

[0117] The memory 920 may include a program storage area and a data storage area, wherein the program storage area may store an application required for operating the device and at least one function; the data storage area may store data created according to the use of the control device, etc. In addition, the memory 920 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0118] The input device 930 may receive input digital or character information and generate key signal input related to user settings and function control of the electronic device. The output device 940 may include a display device such as a display screen.

[0119] The one or more modules are stored in the memory 920, and when executed by the one or more processors 910, perform the control method in any of the above method embodiments.

[0120] The electronic device can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0121] The electronic device of the embodiment of the present invention exists in various forms, including but not limited to:

[0122] (1) Mobile communication devices: These devices are characterized by their mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0123] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

[0124] (3) Portable entertainment devices: These devices can display and play multimedia content. They include audio and video players (such as iPods), handheld game consoles, e-books, smart toys, and portable car navigation devices.

[0125] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to a general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0126] (5) Other electronic devices with data interaction functions, such as televisions, large-screen cars, etc.

[0127] The device embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, i.e., they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0128] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ion generator, characterized in that: The ion generator comprises: A DC power supply, an output end of which is connected to a first terminal of a primary side of the transformer; The transformer, the second terminal of the primary side thereof is connected to the reference ground, the first terminal of the secondary side thereof is connected to the first end of the filter capacitor, the second terminal of the secondary side thereof is connected to the first end of the filter capacitor, the first terminal of the secondary side of the transformer is also connected to the discharge electrode, and the discharge electrode is arranged opposite to the neutral electrode; A first detection module, used for detecting the input voltage of the discharge electrode; A frequency conversion controller, whose input end is connected to the first detection module and whose output end is connected to a switch tube, is used to adjust the switching period and / or duty cycle of the switch tube according to the input voltage of the discharge electrode after the discharge electrode continuously operates at the same input voltage for a period of time, so that the input voltage of the discharge electrode changes; The switch tube is arranged between the second terminal of the primary side of the transformer and the reference ground.

2. The ion generator according to claim 1, characterized in that: The ion generator also includes: The voltage doubling module is arranged between the secondary side of the transformer and the filter capacitor, wherein the first terminal on the input side is connected to the first terminal on the secondary side of the transformer, the second terminal on the input side is connected to the second terminal on the secondary side of the transformer, the first terminal on the output side is connected to the first end of the filter capacitor, and the second terminal on the output side is connected to the second end of the filter capacitor.

3. The ion generator according to claim 1, characterized in that: The ion generator also includes: A resistor is provided between the first terminal of the secondary side of the transformer and the discharge electrode.

4. The ion generator according to claim 1, characterized in that: The ion generator also includes: A detection coil is arranged on the secondary side of the transformer; A second detection module, a first terminal of its input end is connected to the first end of the detection coil, a second terminal of its input end is connected to the second end of the detection coil, and an output side is connected to the frequency conversion controller, and the second detection module is used to detect the voltage on the primary side of the transformer; The frequency conversion controller is also used to determine and calculate the duty cycle of the switch tube according to the voltage on the primary side of the transformer, and to determine whether the duty cycle of the switch tube reaches the maximum duty cycle. If so, the duty cycle of the switch tube is controlled to stop increasing.

5. A refrigerator, characterized in that: An ion generator comprising any one of claims 1 to 4.

6. A control method, applied to the ion generator according to any one of claims 1 to 4, characterized in that: The control method comprises: After the discharge electrode of the ion generator continuously operates at the same input voltage for a preset period of time, obtaining the input voltage of the discharge electrode; The switching period and / or duty cycle of the switch tube is adjusted according to the input voltage of the discharge electrode, so that the input voltage of the discharge electrode changes.

7. The control method according to claim 6, characterized in that: Adjusting the switching period and / or duty cycle of the switch tube according to the input voltage of the discharge electrode so that the input voltage of the discharge electrode changes, includes: Controlling the input voltage of the discharge electrode to adjust the switching period of the switch tube to shorten, and / or controlling the duty cycle of the switch tube to increase, so that the input voltage of the discharge electrode increases; Alternatively, the input voltage of the discharge electrode is controlled to adjust the switching period of the switch tube to extend, and / or the duty cycle of the switch tube is controlled to decrease, so that the input voltage of the discharge electrode is reduced.

8. The control method according to claim 6, characterized in that: The method further comprises: Determining whether the duty cycle of the switch tube reaches a maximum duty cycle; If yes, the duty cycle of the switch tube is controlled to stop increasing.

9. A control method, applied to the refrigerator according to claim 5, characterized in that: The control method comprises: Get the frequency of opening or closing the refrigerator door; According to the door opening frequency of the refrigerator, the switching cycle and / or the duty cycle of the switch tube of the ion generator is adjusted to adjust the input voltage of the discharge electrode of the ion generator. Alternatively, the switching period and / or duty cycle of the switch tube of the ion generator is adjusted according to the closing time of the refrigerator door, so as to adjust the input voltage of the discharge electrode of the ion generator.

10. The control method according to claim 9, characterized in that: According to the door opening frequency of the refrigerator, the switching cycle and / or the duty cycle of the switch tube of the ion generator is adjusted to adjust the input voltage of the discharge electrode of the ion generator, including: If the door opening frequency of the refrigerator increases, the switching cycle of the switch tube of the ion generator is controlled to be shortened and / or the duty cycle of the switch tube is controlled to be increased, so as to control the input voltage of the discharge electrode of the ion generator to increase; If the door opening frequency of the refrigerator decreases, the switching cycle of the switch tube of the ion generator is controlled to be extended and / or the duty cycle of the switch tube is controlled to be reduced, so as to control the input voltage of the discharge electrode of the ion generator to decrease.

11. The control method according to claim 9, characterized in that: According to the closing time of the refrigerator door, the switching cycle and / or the duty cycle of the switch tube of the ion generator is adjusted to adjust the input voltage of the discharge electrode of the ion generator, including: If the door opening time of the refrigerator is shortened relative to the set time, the switching cycle of the switch tube of the ion generator is controlled to be shortened and / or the duty cycle of the switch tube is controlled to be increased, so as to control the input voltage of the discharge electrode of the ion generator to increase; If the door opening time of the refrigerator is extended relative to the set time, the switching cycle of the switch tube of the ion generator is extended and / or the duty cycle of the switch tube is reduced to control the input voltage of the discharge electrode of the ion generator to decrease.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 6 to 8 is implemented.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 9 to 11 is implemented.

14. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method as described in any one of claims 6 to 8, or the method as described in any one of claims 9 to 11.

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